091 Powerful Items in RPGs

Powerful items in rpg’s, game masters give them out from time-to-time. It’s the +5 Holy Avenger or some ancient artifact that can grant Wish or Resurrection spells. You run the risk of breaking your game, or do you? We as Dungeon Masters may regret providing these powerful magic items, but what do you do after one of the members of possess such a find and you need to set things right?